docs(voice): add DAVE dependency section

[jNullj]

Please describe the changes this PR makes and why it should be merged:

Support for DAVE protocol was added at #10735
Discord mention this in a past blog post here and it seems like this is about to be a requirement.
As I discovered while I got repeated crashes due to discord not downgrading my connection to a non e2ee connection!
It could be very useful if i known about this dependency while searching for a solution.
It could be also a good idea to inform users in the release notes/changelog so they know it's a good idea to add this dependency.

Made another PR for the guide as well #11145

Status and versioning classification:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating
• This PR only includes non-code changes, like changes to documentation, README, etc.

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2 Skipped Deployments

Project	Deployment	Preview	Comments	Updated (UTC)
discord-js	Skipped			Dec 9, 2025 5:45pm
discord-js-guide	Skipped			Dec 9, 2025 5:45pm

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 42.68%. Comparing base (2c3bf5c) to head (5d98e17).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #11061       +/-   ##
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+ Coverage   32.45%   42.68%   +10.23%     
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  Files         369      309       -60     
  Lines       13611    16566     +2955     
  Branches     1069     1657      +588     
===========================================
+ Hits         4417     7071     +2654     
- Misses       9059     9445      +386     
+ Partials      135       50       -85     

Flag	Coverage Δ
voice	55.41% <ø> (ø)

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[coderabbitai]

📝 Walkthrough

Walkthrough

Added a new subsection documenting DAVE Protocol Libraries for end-to-end encryption under the Encryption Libraries section of the package README, along with a warning note about Discord client requirements and a new dependency.

Changes

Cohort / File(s)	Summary
Documentation & Dependencies packages/voice/README.md	Added "DAVE Protocol Libraries (e2ee)" subsection under Encryption Libraries with warning note about Discord client requirements; added @snazzah/davey: ^0.1.6 dependency

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding documentation about the DAVE dependency in the voice package README.
Description check	✅ Passed	The description clearly explains the context and rationale for adding DAVE protocol documentation, referencing Discord's announcement and the practical need to prevent user crashes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: ASSERTIVE

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between eaa6863 and 5d98e17.

📒 Files selected for processing (1)

• packages/voice/README.md (1 hunks)

🧰 Additional context used

🪛 markdownlint-cli2 (0.18.1)

packages/voice/README.md

65-65: Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: Tests

🔇 Additional comments (1)

packages/voice/README.md (1)

65-70: Content looks good, well-integrated into the dependencies section.

The warning note clearly explains the requirement and the dependency listing is properly formatted. The addition fits naturally into the existing Documentation section structure and complements the previous Encryption Libraries section.